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Calculation of thrust for a single-sided linear induction motor, taking into account phase unbalance and higher time harmonics

Berechnung der Schubkraft für einen einseitigen Linearmotor, die unsymmetrische Phasenbelastung und Oberwellen berücksichtigt

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Contents

An analytical method for calculating the thrust of a single-sided linear induction motor (LIM), including the effects of both phase unbalance and higher time harmonics has been presented. Unbalance of the phase currents under balanced voltage operation is due to asymmetry of the primary windings and to longitudinal end effect. While higher time harmonics have little effect, phase unbalance produces a deterioration of a few percent in thrust.

Übersicht

Es wird eine analytische Methode zur Berechnung der Schubkraft eines einseitigen Linearmotors (LIM) vorgelegt, welche die Effekte der unsymmetrischen Phasenbelastung und der Oberschwingungen berücksichtigt. Die Unsymmetrie der Phasenströme im symmetrischen Spannungsbetrieb ist bedingt durch die Unsymmetrie der Primärspulen und durch den Längsendeffekt. Während Oberschwingungen wenig Einfluß haben, wird die Schubkraft durch ungleiche Phasenbelastung um einige Prozent vermindert.

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Authors and Affiliations

  1. Dept. of Electrical & Electronic Engineering, University of Cape Town, 7700, Rondebosch, Republic of South Africa

    J. F. Gieras

  2. Dept. of Electrical Enginering, Queen's University, K7L 3N6, Kingston, Ontario, Canada

    A. R. Eastham,  G. E. Dawson &  G. John

Authors
  1. J. F. Gieras
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  2. A. R. Eastham
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  3. G. E. Dawson
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  4. G. John
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Gieras, J.F., Eastham, A.R., Dawson, G.E. et al. Calculation of thrust for a single-sided linear induction motor, taking into account phase unbalance and higher time harmonics. Archiv f. Elektrotechnik 73, 299–308 (1990). https://doi.org/10.1007/BF01574265

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  • DOI: https://doi.org/10.1007/BF01574265

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